Devices and revoking access Diagnostics lists every machine enrolled in your organization: who it belongs to, when it registered, and when the Gateway last saw it. Revoking a device Revoke access on a row kills that machine's gateway tokens. The AI tools on it lose access within seconds — no need to reach the laptop, and it works whether or not the machine is online. Use it for a lost or stolen laptop, or a machine that shouldn't have been enrolled. For a person who has left, use Offboard on Users & Teams instead — it covers every device plus their passkeys in one action. Revoking is reversible: the same row offers Restore access afterwards. Device identity Each machine holds a hardware-backed key in the OS keychain (Keychain on macOS, Credential Manager on Windows). The private key never leaves the device, and it is what ties a request in Activity to a person and a machine rather than to a shared token. Diagnostics — enrolled machines, when each was last seen, and per-device revocation.